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Get Free AccessExquisite calibration of model parameter is crucial for simulation accuracy of cyclic constitutive model. This paper is aiming to clarify the influence of different calibration factors on the calibration results and simulation performances of Chaboche combined isotropic/kinematic hardening constitutive model. The influencing calibration factors include the definition of proof strength point on unloading-reloading path, the definition of unloading elastic modulus, the relative proportion of initial back stress and saturation back stress. Based upon different influencing factors, the Chaboche model parameters of LYP225 steel and Q460 steel are calibrated. Accordingly, the main cyclic behavior curves, including the hysteretic stress-strain curves, the evolutionary curves of stress amplitude and plastic work are simulated. Through analyzing the errors between experimental and simulated results, rational suggestions for the valuation of each influencing factor are provided. By taking these suggestions, the calibration of model parameters are able to yield favorable simulation performances and promising convenience for subsequent comparative studies.
Kong Kwong, Wah Hospital, Xiangyu Zou, Yunxiao Zhang, Y Liu, Lei Shi, D Kan, Wu Ouyang, L Chen, S Liu, Da Chen, Yuguang Ma, Chengqiang Cui, Q Zhang, W Lao, Congcong Huang, Heng Ban, Hai Lu, Yan Shi, Qi Si, Yan Ding, Zong Li, Haozhe Liu, Zengwu Shao, Yi Li, Siwei Song, Wang Jin, Y Liu, H Dong, X Liu High, Wang We, A Sharhan, Ershun Du, X Hu, Zhenhuan Zhou, Jian Lü, Yankun Tang, A Abdelrahman, M Ghannam, S Lotfy, Mohammad AlHamaydeh, Xiang Xiong, F Nkuichou, Tao Wang, M Ma, K Du Corrosion, Na Wang, Jianmin Hua, Xin Xue, Qiao Huang, Fei Wang, Han Huang, Liang Ren, Kun Chen, Xue Li, Lei Wang, Bing Yang, Minming Zhang, Wenjun Liu, Z Lei, Dongying Wang, Jiabin Wang, Liming Zhou, Xueming Shu, Cross-Sections Zhang, Leroy Gardner, C Buchanan, Dave Chan, Wei Sun, Y Wang, Xin Yang, Guo‐Qiang Li (2022). A REEXAMINATION ON CALIBRATION OF CYCLIC CONSTITUTIVE MODEL FOR STRUCTURAL STEELS. , DOI: https://doi.org/10.18057/icass2020.p.267.
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Type
Report
Year
2022
Authors
72
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.18057/icass2020.p.267
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